add class Commit

src/main/java/ru/ulstu/extractor/Commit.java

@@ -0,0 +1,25 @@
+package ru.ulstu.extractor;
+
+import java.util.Date;
+
+public class Commit {
+    private String message;
+    private Date date;
+    private String author;
+
+    public Commit(String message) {
+        this.message = message;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    public Date getDate() {
+        return date;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+}

src/main/java/ru/ulstu/extractor/GitRepositoryService.java

@@ -11,6 +11,8 @@ import org.springframework.stereotype.Service;
 import java.io.File;
 import java.io.IOException;
 import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.List;
 
 import static org.apache.logging.log4j.util.Strings.isBlank;
 
@@ -54,4 +56,22 @@ public class GitRepositoryService {
     private boolean projectDirExists(File file) {
         return file.exists();
     }
+
+    public List<Commit> getCommits(String url) throws GitAPIException, IOException {
+        cloneOrUpdateRepo(url);
+        Repository localRepo = new FileRepository(getProjectGitDirectory(url));
+        Git git = new Git(localRepo);
+        git.pull().call();
+        List<RevCommit> commits = new ArrayList<>();
+        //TODO: сделать преобразование в коллекцию "наших объектов"
+        git.log().call().forEach(commits::add);
+
+        List<Commit> list = new ArrayList<>();
+        for (RevCommit commit : commits) {
+            Commit fullMessage = new Commit(commit.getFullMessage());
+            list.add(fullMessage);
+        }
+
+        return list;
+    }
 }

src/main/java/ru/ulstu/extractor/RepoController.java

@@ -7,6 +7,7 @@ import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 import java.io.IOException;
+import java.util.List;
 
 import static ru.ulstu.extractor.RepoController.URL;
 
@@ -24,4 +25,10 @@ public class RepoController {
     public void cloneRepository(@RequestParam("url") String url) throws GitAPIException, IOException {
         gitRepositoryService.cloneOrUpdateRepo(url);
     }
+
+    @GetMapping("commits")
+    public List<Commit> getCommits(@RequestParam("url") String url) throws GitAPIException, IOException {
+        return gitRepositoryService.getCommits(url);
+    }
+
 }